Spring-roller assembly



April 14, 1931 N. H. NELSON 1,800,654

SPRING ROLLER ASSEMBLY Original Filed Oct. 7, 1927 Patented Apr. 14, 1931 isaiasir .earner rice NELS H.

NELSON, F ARNOLDS PARK, IOTA,` ASSIGNOR T0 THE ROLSCREEN COMPANY,

OF PELLA, IOWA SPRING-ROLLER ASSEMBLY Original application led October 7, 1927, Serial N o. 224,602. Divided and this application `led November The subject matter of this application was originally included in, but has been divided from my application on improvement in rolling screens filed October 7, 1927, Serial No.

224,602, patented J une 4, 1929, No. 1,715,858.

The object of this invention is to provide an improved spring roller assembly for use with rolling screens, awnings, shades, 'and curtains, which is simple, durable and comparatively inexpensive to manufacture.

More specifically, the object of this invention is to provide an improved construction for a roller whereby adequate bearings are provided at small expense and at the same time the diameter of the roller at its extreme ends is` reduced to accommodate the increased marginal thickness of fabric to `be wound thereon, dueto the presence of clips or fastening members.

Vfith these and other objects in view my invention consists in the construction, arrangement and combination of the various parts of my device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which:

Figure 1 is a vertical sectional view showing a window frame equipped with rolling screen with which my improved spring roller is employed.

Figure 2 is a longitudinal section through the roller assembly on the line 2-2 of Figure 1, a portion being broken away to economize space.

Figure 3 is a horizontal section through one of the screen tracks and a portion of the screen on the line 3-3 of Figure 1.

Figure 4e is a perspective view of the roller,

a portion being broken away.

My improved spring roller assembly is adapted for use with rolling window screens as shown in the accompanying drawing or with rolling awnings, shades, curtains and the like.

Serial No. 317,862.

In the accompanying drawing, I have used the numeral 10 to designate generally, a window frame at the upper end of which is mounted a sheet metal housing 12.

Mounted in and centrally of the housing 10 and extending from end to end thereof is a spindle or rod 11i and a tubular sheet imetal roller 16 is journaled on said spindle or rod and extends longitudinally of the housing.

`he roller 16 preferably is formed of a sheet metal tube of considerably Dreater diameter than the rod 14 and has its end portions swaged and reduced in diameter to form elongated bearings 18 and 20 which engage and rotate on the rod.

inasmuch as the swaged portions 18 and 2O are of considerable length, they provide adequate bearings for the roller to resist the terdency to wear or to cut grooves in the ro A coil spring 22 is wound on the rod 14 and has one end attached thereto in any suitable manner such as by passing it through a longitudinal slot 24 in the rod.

The opposite end of the spring 22 is attached to the roller 16 at the point 26.

A sheet of fabric such as screen mesh 28 is attached at one of its end margins to the roller 16 and is adapted to be wound thereon and to be extended through a longitudinal slot 30 formed at the lower rear corner of the housing 12.

The fabric which is wound on the roller may in some instances be of canvas or other similar' material to form an awning, shade, or curtain.

In the rolling screen construction it is customary to employ guide tracks which are mounted vertically at the side margins of the window frame to receive side marginal portionsof the screen 28. One of these tracks is shown in Figures 1 and 3 and designated by the numeral 32.

In such construction, the side margin of t-he screen projects through a slit opening in V the inner face of the guide track and itis p' Vcustomary .tol employ clips'jor staples 34 orfV similar enlarged members at spaced f iltervals r on the side 4margins of thescreen',V the func- 5 tion of lwhich isto travel in :thefguide tracks' and normally yto-'prevent Withdrawal of the Y v' screen therefrom. A' 1 `f YWhen .the screen QSAiS-.Wound on the roller :16 it is obvious there Will be a b-nnching'or: 10 piling. upyihich Willfcaiisean enlargement i 0f the'margialrotionurorth .11011,@11 "1 The formation ofl my improyedrollerhere shownand described, is designed to compensate for the. enlargements at thefsi'de niar- L' 15 ginal portions otthescreen. and to preventff .org atleast greatly minimizethe tendency "11)"kv pile up atthe end portions of the roller. In QtheQlwerdsthe. rredu ctfofl0f 2l1f1nleterzofadditi'onal .spacefor the enlarged marginal portionsofthescreen,diie tothe presence of n Vthe.members 8 4 thereon.;`

'Y 1 1; This same advantage is foundv in the use of Y the roller 'Withawnings or' curtains which .2 5 may befprovided With clips, studs or otherY Y astening means atitheir side marginal portions-2;" f lib Y l @the Aformation Ythe reduced bearings 18 'and *209et 'thendsof therollers1.6,` there 30"-is preferably a gradual tapering' or reducing.

',indiameter,asindicat'edrespectively-by the Y nnmeral, j -f Y. Y

This formationis ofe'specialcenvenience in compensating for clips 34; of the nature i shown in Figures 2 and 3, Whichfhave their Vgeatest'.thickness located near theextreine n... mter edge'oftherfabricrjg 1 Y 1 1 I claim' asmy invention.: fflj :I f 1.V In adeyice of the. class described,'-fa*` "iolspindle,v andatublilarroller arranged for s 'rotationon-saidy spindle, said roller being of'V materially'greaterdiameter'than saidspindle .and havingV its end portionsreduced bothinf ternally Iand ezternallyi;toformfelengated :l Y v45bearing portions ;litted to said spindle and f #also to acconnnodate thickened marginal portionsroflalfabricstofbe-Wonnd on the'lroller.V v 2.-- A rollerassemblfy ctn'nprisil'lg` a rod, a

tubular roller of materially greater V'diann- '50 :eter than' said rod, thendfportions of said rol-ler lbeing reduced in diameter to''formy elongatedbearingsjournaled-on said rodi Y roller lassembly comprisinga rod, v'a rllllllarroller ofmateriallygreateridiaineter 55 than said rodgathe end pQrtions. ofsaid-.reller f being reducedin'diameterto formelongated v .bea-rings ournaled on "said rod, Vsaid reduced .bearingportionsbein'g connected to thebody I fp ortionof the rollerzby intermediatetapered .00 portions. f `L Y, L Des Moines,'IowaaiOctober'20,1928. Y 

